oj.uz

Submission #1014462

# Submission time Handle Problem Language Result Execution time Memory
1014462 2024-07-05T00:38:55 Z boyliguanhan Cats or Dogs (JOI18_catdog) C++17
100 / 100
 399 ms 25940 KB 
#include "catdog.h"
#define M 100100
#include<bits/stdc++.h>
using namespace std;
int type[M],sz[M],id[M],top[M],out[M],hev[M],CC,par[M],osc[M],BG=1e9;
struct dpstruct{
    int cc,cd,dc,dd;
    dpstruct(){cc=dd=0,cd=dc=1;}
    dpstruct(int x){cc=dd=0,cd=dc=BG;}
    inline friend dpstruct operator +(dpstruct a,dpstruct b){
        dpstruct c;
        swap(a,b);
        c.cc=min({a.cc+b.cc,a.cd+b.dc,BG});
        c.cd=min({a.cc+b.cd,a.cd+b.dd,BG});
        c.dc=min({a.dd+b.dc,a.dc+b.cc,BG});
        c.dd=min({a.dd+b.dd,a.dc+b.cd,BG});
        return c;
    }
    inline void sub(dpstruct x){
        int dog=min(x.cd,x.dd);
        int cat=min(x.cc,x.dc);
        dog=min(dog,cat+1);
        cat=min(cat,dog+1);
        cc-=cat;
        cd-=dog;
        dc-=cat;
        dd-=dog;
    }
    inline void add(dpstruct x){
        int dog=min(x.cd,x.dd);
        int cat=min(x.cc,x.dc);
        dog=min(dog,cat+1);
        cat=min(cat,dog+1);
        cc+=cat;
        cd+=dog;
        dc+=cat;
        dd+=dog;
    }
    inline int an(){return min({cc,cd,dc,dd});}
} T[1<<18],fl[M];
vector<int>adj[M];
dpstruct query(int i,int l,int r,int ll,int rr){
    if(ll>r|l>rr)return dpstruct(0);
    if(ll<=l&&r<=rr)return T[i];
    return query(i*2,l,l+r>>1,ll,rr)+
        query(i*2+1,l+r+2>>1,r,ll,rr);
}
void upd(int i,int l,int r,int p,dpstruct x){
    if(l==r)return void(T[i]=x);
    if(p<=l+r>>1)upd(i*2,l,l+r>>1,p,x);
    else upd(i*2+1,l+r+2>>1,r,p,x);
    T[i]=T[i*2]+T[i*2+1];
}
void dfs1(int n){
    sz[n]=1;
    for(auto i:adj[n]) if(i-par[n])
        par[i]=n,dfs1(i),sz[n]+=sz[i],
        hev[n]=(sz[hev[n]]<sz[i]?i:hev[n]);
}
void dfs2(int n){
    osc[id[n]=++CC]=n;
    top[n]=(n-hev[par[n]]?n:top[par[n]]);
    out[top[n]]=CC;
    if(hev[n])dfs2(hev[n]);
    for(auto i:adj[n])  
        if(i-par[n]&&i-hev[n])
            dfs2(i);
}
void initialize(int N, std::vector<int> A, std::vector<int> B) {
    for(int i=0;i<N-1;i++)
        adj[A[i]].push_back(B[i]),
        adj[B[i]].push_back(A[i]);
    dfs1(1);
    dfs2(1);
}
dpstruct gedan(int chain){
    return query(1,1,CC,id[top[chain]],out[top[chain]]);    
}
dpstruct idk(int t,dpstruct x){
    if(t>1)x.cc=x.dc=BG;
    else if(t)x.cd=x.dd=BG;
    return x;
}
void redo(int n){
    if(!n)return;
    fl[par[top[n]]].sub(gedan(n));
    upd(1,1,CC,id[n],idk(type[n],fl[n]));
    fl[par[top[n]]].add(gedan(n));
    return redo(par[top[n]]);
}
int cat(int v) {
    type[v]=1;
    redo(v);
    return gedan(1).an();
}

int dog(int v) {
    type[v]=2;
    redo(v);
    return gedan(1).an();
}

int neighbor(int v) {
    type[v]=0;
    redo(v);
    return gedan(1).an();
}

Compilation message

catdog.cpp: In function 'dpstruct query(int, int, int, int, int)':
catdog.cpp:43:10: warning: suggest parentheses around comparison in operand of '|' [-Wparentheses]
   43 |     if(ll>r|l>rr)return dpstruct(0);
      |        ~~^~
catdog.cpp:45:25: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   45 |     return query(i*2,l,l+r>>1,ll,rr)+
      |                        ~^~
catdog.cpp:46:24: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   46 |         query(i*2+1,l+r+2>>1,r,ll,rr);
      |                     ~~~^~
catdog.cpp: In function 'void upd(int, int, int, int, dpstruct)':
catdog.cpp:50:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   50 |     if(p<=l+r>>1)upd(i*2,l,l+r>>1,p,x);
      |           ~^~
catdog.cpp:50:29: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   50 |     if(p<=l+r>>1)upd(i*2,l,l+r>>1,p,x);
      |                            ~^~
catdog.cpp:51:23: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   51 |     else upd(i*2+1,l+r+2>>1,r,p,x);
      |                    ~~~^~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 8284 KB Output is correct
2 Correct 3 ms 8284 KB Output is correct
3 Correct 3 ms 8388 KB Output is correct
4 Correct 3 ms 8284 KB Output is correct
5 Correct 3 ms 8284 KB Output is correct
6 Correct 4 ms 8284 KB Output is correct
7 Correct 3 ms 8284 KB Output is correct
8 Correct 3 ms 8284 KB Output is correct
9 Correct 3 ms 8284 KB Output is correct
10 Correct 3 ms 8284 KB Output is correct
11 Correct 3 ms 8284 KB Output is correct
12 Correct 4 ms 8280 KB Output is correct
13 Correct 3 ms 8284 KB Output is correct
14 Correct 3 ms 8284 KB Output is correct
15 Correct 3 ms 8284 KB Output is correct
16 Correct 4 ms 8284 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 8284 KB Output is correct
2 Correct 3 ms 8284 KB Output is correct
3 Correct 3 ms 8388 KB Output is correct
4 Correct 3 ms 8284 KB Output is correct
5 Correct 3 ms 8284 KB Output is correct
6 Correct 4 ms 8284 KB Output is correct
7 Correct 3 ms 8284 KB Output is correct
8 Correct 3 ms 8284 KB Output is correct
9 Correct 3 ms 8284 KB Output is correct
10 Correct 3 ms 8284 KB Output is correct
11 Correct 3 ms 8284 KB Output is correct
12 Correct 4 ms 8280 KB Output is correct
13 Correct 3 ms 8284 KB Output is correct
14 Correct 3 ms 8284 KB Output is correct
15 Correct 3 ms 8284 KB Output is correct
16 Correct 4 ms 8284 KB Output is correct
17 Correct 4 ms 8540 KB Output is correct
18 Correct 6 ms 8472 KB Output is correct
19 Correct 4 ms 8536 KB Output is correct
20 Correct 4 ms 8468 KB Output is correct
21 Correct 3 ms 8284 KB Output is correct
22 Correct 4 ms 8472 KB Output is correct
23 Correct 5 ms 8540 KB Output is correct
24 Correct 4 ms 8472 KB Output is correct
25 Correct 4 ms 8548 KB Output is correct
26 Correct 3 ms 8540 KB Output is correct
27 Correct 4 ms 8284 KB Output is correct
28 Correct 4 ms 8544 KB Output is correct
29 Correct 4 ms 8504 KB Output is correct
30 Correct 4 ms 8280 KB Output is correct
31 Correct 4 ms 8536 KB Output is correct
32 Correct 5 ms 8540 KB Output is correct

Subtask #3
62.0 / 62.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 8284 KB Output is correct
2 Correct 3 ms 8284 KB Output is correct
3 Correct 3 ms 8388 KB Output is correct
4 Correct 3 ms 8284 KB Output is correct
5 Correct 3 ms 8284 KB Output is correct
6 Correct 4 ms 8284 KB Output is correct
7 Correct 3 ms 8284 KB Output is correct
8 Correct 3 ms 8284 KB Output is correct
9 Correct 3 ms 8284 KB Output is correct
10 Correct 3 ms 8284 KB Output is correct
11 Correct 3 ms 8284 KB Output is correct
12 Correct 4 ms 8280 KB Output is correct
13 Correct 3 ms 8284 KB Output is correct
14 Correct 3 ms 8284 KB Output is correct
15 Correct 3 ms 8284 KB Output is correct
16 Correct 4 ms 8284 KB Output is correct
17 Correct 4 ms 8540 KB Output is correct
18 Correct 6 ms 8472 KB Output is correct
19 Correct 4 ms 8536 KB Output is correct
20 Correct 4 ms 8468 KB Output is correct
21 Correct 3 ms 8284 KB Output is correct
22 Correct 4 ms 8472 KB Output is correct
23 Correct 5 ms 8540 KB Output is correct
24 Correct 4 ms 8472 KB Output is correct
25 Correct 4 ms 8548 KB Output is correct
26 Correct 3 ms 8540 KB Output is correct
27 Correct 4 ms 8284 KB Output is correct
28 Correct 4 ms 8544 KB Output is correct
29 Correct 4 ms 8504 KB Output is correct
30 Correct 4 ms 8280 KB Output is correct
31 Correct 4 ms 8536 KB Output is correct
32 Correct 5 ms 8540 KB Output is correct
33 Correct 227 ms 14292 KB Output is correct
34 Correct 81 ms 14156 KB Output is correct
35 Correct 239 ms 13168 KB Output is correct
36 Correct 353 ms 18136 KB Output is correct
37 Correct 13 ms 11096 KB Output is correct
38 Correct 390 ms 19056 KB Output is correct
39 Correct 379 ms 19012 KB Output is correct
40 Correct 369 ms 19188 KB Output is correct
41 Correct 353 ms 19176 KB Output is correct
42 Correct 340 ms 19004 KB Output is correct
43 Correct 399 ms 19168 KB Output is correct
44 Correct 345 ms 19056 KB Output is correct
45 Correct 340 ms 19220 KB Output is correct
46 Correct 352 ms 19112 KB Output is correct
47 Correct 363 ms 19008 KB Output is correct
48 Correct 123 ms 15856 KB Output is correct
49 Correct 126 ms 17532 KB Output is correct
50 Correct 48 ms 10592 KB Output is correct
51 Correct 53 ms 11984 KB Output is correct
52 Correct 23 ms 10328 KB Output is correct
53 Correct 157 ms 17432 KB Output is correct
54 Correct 122 ms 12624 KB Output is correct
55 Correct 306 ms 16204 KB Output is correct
56 Correct 182 ms 13564 KB Output is correct
57 Correct 267 ms 17516 KB Output is correct
58 Correct 23 ms 11988 KB Output is correct
59 Correct 51 ms 11868 KB Output is correct
60 Correct 124 ms 16736 KB Output is correct
61 Correct 125 ms 17212 KB Output is correct
62 Correct 72 ms 15060 KB Output is correct
63 Correct 34 ms 15696 KB Output is correct
64 Correct 35 ms 17244 KB Output is correct
65 Correct 41 ms 22108 KB Output is correct
66 Correct 53 ms 12184 KB Output is correct
67 Correct 49 ms 18268 KB Output is correct
68 Correct 126 ms 22612 KB Output is correct
69 Correct 24 ms 9852 KB Output is correct
70 Correct 9 ms 8536 KB Output is correct
71 Correct 44 ms 15188 KB Output is correct
72 Correct 63 ms 20676 KB Output is correct
73 Correct 158 ms 25940 KB Output is correct
74 Correct 181 ms 22356 KB Output is correct
75 Correct 109 ms 25772 KB Output is correct
76 Correct 139 ms 24404 KB Output is correct
77 Correct 174 ms 22568 KB Output is correct